Liquid-fuel burner.



No. 724,491. PATEN-TED APR. 7, 1903.

. E, G. QFELDT.

LIQUID FUEL BURNER.

APPLIOATION FILED NOV. 16, 1902.

so 'monn- INVENTOR.

I V g t At tomgy UNITED STATES PATENT OFFICE.

ERNEST G. OFELDT, OF BROOKLYN,'NEW YORK.

: LIQUID-FUEL BURNER.

SPECIFICATION forming part Of Letters Patent N0. 724,491, dated. April7, 1903.

Application filed November 15, 1902. $erial No. 131,527. (No model.)

scription of the invention, such as will enable others skilled in theart to which it appertains to make auduse the same.

My invention relates to an improved liquidfuel burner, the object of theinvention being to provide improvements of this character which willmost effectually prevent the gas or products of vaporization which aregenerated by heat and admixture with air from condensing before itreaches the burner and to so support the oil-supply pipe upon theair-pipe as to prevent thelatter from becoming too highly heated.

With these objects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, aswill be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is a view in section illustratingmy improvements, and Fig. 2 is an end view thereof.

1 represents an air-supply tube or pipe, which is of the general U shapeshown, closed at one end, where it projects into a burnertube 2.Thisair-tube throughout its portion in the burner-tube is perforatedalong its bottom to direct the mixed gas and air into the burner-tube 2,and the latter is perforated along its upper edge, forming jet-orificesto direct the flame up against the air-tube and against avaporizing-coil 3 around the same. This coil winds around and around theairpipe, shielding it from the most intense heat, yet permitting it tobe sufficiently heated to prevent the gas from condensing in the airtubebefore it reaches the burner.

Oil is supplied to the end of the coil farthest from the inlet end ofthe air-pipe 1 by means of a pipe 4, and a pipepdconveys the gas orvapor which is generated in the coil by the heat from the burner to theinlet end of the air-pipe, where it is provided with a contracted nozzle6 to direct the gas or vapor into the center of the air-pipe. The gas orvapor mixes with the incoming air, and this mixture passes to the burnerand is burned to continue the operation above explained.

Below burner-tube 2 a pan 7 is preferably located and is adapted to besupplied with-v alcohol, which when ignited Will start preliminaryvaporization. However, a torch or other known device may be used forthis purpose, if preferred.

Agreat many changes might be made in the general form and arrangement ofthe parts described without departing from my invention, and hence I donot confine myself to the precise details set forth, but consider myselfat liberty to make such slight changes and alterations as fairly fallwithin the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A liquid-fuel burner, comprising a horizontal'burner-tube perforatedalong its top, an air and vapor mixing tube located above the burner andarranged parallel therewith, and connected at one end with one end ofthe burner-tube, and a vaporizing-coil encircling the air-pipe andarranged to discharge the gas or vapor'into the open end of the air andvapor mixing tube, substantially as set forth.

2. A liquid fuel burner, comprising a burner-tube perforated on oneside, an air and vapor mixing tube arranged parallel with theburner-tube and connected therewith, and avaporizing-tube encircling theair-pipe and arranged to discharge the gas or vapor into the open end ofthe air and vapor mixing tube, the arrangement of the tube being suchthat the, liquid fuel will be progressivel y heated in its passagethrough the vaporizing-tube, and the air and vapor will be progressivelyheated in its passage through the air and vapor mixing tube,substantially as set forth.

3. A liquid-fuel burner, comprising a horizontal burner-tube perforatedalong its top, an air-tube located above the burner-tube,

bent at one end and projecting into one end I specification in thepresenoe of two subscribof the burner-tube and perforated along its ingwitnesses. v bottom in' said burner-tube and a vaporiz- T 1 1 ing-coilaround the air-pipe ahove the burner- ERA EST OFELD'K 5 tube directingthe gas or vapor generated therein into the air-tube.

Witnesses:

- JAs. H. STRAIN,

In testimony whereof I have signed this ALBERT STORK.

